출애굽기 2:3 해설: Rashi, Ibn Ezra, Rashbam & Sforno

ולא יכלה עוד הצפינו AND SHE COULD NO LONGER CONCEAL HIM, because the Egyptians calculated the period from when he (Amram) took her back. She, however, bore him after a term of six months and one day — for a woman who gives birth to a child in the seventh month may do so in incomplete months (i. e. the seventh month of pregnancy may not be completed) (Niddah 38b) — and they (the Egyptians) made enquiry regarding her at the end of nine months (the normal term of pregnancy, but in this case three months after the child’s birth; therefore “she could no longer conceal him”).

The thoughts of God are deep; who can perceive His secret? To Him alone the plot is clear. Perhaps God caused it to come about that Moshe would grow up in the royal palace, that his soul might be habituated to be on the highest level, not lowly and accustomed to being in a house of slaves. For do we not see that he kills the Egyptian for performing an act of unjust violence? And he saves the Midianite daughters from the shepherds, for they (the shepherds) perform unjust violence in watering their flocks from the water drawn by them (the daughters of Re’uel). And moreover: had he grown up among his brethren, such that they had known him since his youth, they would not be in awe of him, for they would consider him as one of them.

בחמר, on the inside,

גמא PAPER-REED — In the language of the Mishna it is called גמי (Shabbat 78a), and in old French junc. It is a flexible substance that offers resistance to the pressure of both soft and hard things (Sotah 12a).